Hi, Brad:
This is the output of "ceph osd crush show-tunables -f json-pretty"
{
"choose_local_tries": 0,
"choose_local_fallback_tries": 0,
"choose_total_tries": 50,
"chooseleaf_descend_once": 1,
"chooseleaf_vary_r": 1,
"chooseleaf_stable": 0,
"straw_calc_version": 1,
"allowed_bucket_algs": 22,
"profile": "firefly",
"optimal_tunables": 0,
"legacy_tunables": 0,
"minimum_required_version": "firefly",
"require_feature_tunables": 1,
"require_feature_tunables2": 1,
"has_v2_rules": 0,
"require_feature_tunables3": 1,
"has_v3_rules": 0,
"has_v4_buckets": 0,
"require_feature_tunables5": 0,
"has_v5_rules": 0
}
The value of "require_feature_tunables3" is 1, I think It need to be 0 to make my rbd map success.
So I set it to 0 by ceph osd crush tool, but it still dosn't work.
Then I checked the rbd image info:
rbd image 'myimage':
size 1024 MB in 256 objects
order 22 (4096 kB objects)
block_name_prefix: rbd_data.5e3074b0dc51
format: 2
features: layering, exclusive-lock, object-map, fast-diff, deep-flatten
flags:
It looks like that some of the features are not supported by my rbd kernel module.
Because when I get rid of the last 4 features, and only keep the "layering" feature,
the image seems to be mapped and used rightly.
Thanks for your answer!
Kind Regards,
Haitao Wang
At 2016-06-23 09:51:02, "Brad Hubbard" <bhubbard@xxxxxxxxxx> wrote: >On Wed, Jun 22, 2016 at 3:20 PM, 王海涛 <whtjyl@xxxxxxx> wrote: >> I find this message in dmesg: >> [83090.212918] libceph: mon0 192.168.159.128:6789 feature set mismatch, my >> 4a042a42 < server's 2004a042a42, missing 20000000000 >> >> According to >> "http://cephnotes.ksperis.com/blog/2014/01/21/feature-set-mismatch-error-on-ceph-kernel-client", >> this could mean that I need to upgrade kernel client up to 3.15 or disable >> tunable 3 features. >> Our cluster is not convenient to upgrade. >> Could you tell me how to disable tunable 3 features? > >Can you show the output of the following command please? > ># ceph osd crush show-tunables -f json-pretty > >I believe you'll need to use "ceph osd crush tunables " to adjust this. > >> >> Thanks! >> >> Kind Regards, >> Haitao Wang >> >> >> At 2016-06-22 12:33:42, "Brad Hubbard" <bhubbard@xxxxxxxxxx> wrote: >>>On Wed, Jun 22, 2016 at 1:35 PM, 王海涛 <whtjyl@xxxxxxx> wrote: >>>> Hi All >>>> >>>> I'm using ceph-10.1.1 to map a rbd image ,but it dosen't work ,the error >>>> messages are: >>>> >>>> root@heaven:~#rbd map rbd/myimage --id admin >>>> 2016-06-22 11:16:34.546623 7fc87ca53d80 -1 WARNING: the following >>>> dangerous >>>> and experimental features are enabled: bluestore,rocksdb >>>> 2016-06-22 11:16:34.547166 7fc87ca53d80 -1 WARNING: the following >>>> dangerous >>>> and experimental features are enabled: bluestore,rocksdb >>>> 2016-06-22 11:16:34.549018 7fc87ca53d80 -1 WARNING: the following >>>> dangerous >>>> and experimental features are enabled: bluestore,rocksdb >>>> rbd: sysfs write failed >>>> rbd: map failed: (5) Input/output error >>> >>>Anything in dmesg, or anywhere, about "feature set mismatch" ? >>> >>>http://cephnotes.ksperis.com/blog/2014/01/21/feature-set-mismatch-error-on-ceph-kernel-client >>> >>>> >>>> Could someone tell me what's wrong? >>>> Thanks! >>>> >>>> Kind Regards, >>>> Haitao Wang >>>> >>>> >>>> _______________________________________________ >>>> ceph-users mailing list >>>> ceph-users@xxxxxxxxxxxxxx >>>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>>> >>> >>> >>> >>>-- >>>Cheers, >>>Brad > > > >-- >Cheers, >Brad
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